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【单选题】
Tom: So, ______? Boris Oh, nothing much. The usual things, you know. Tom Mm. . . still working at the same place, I suppose? Boris Yes, that’s right.A.
what have you been up to
B.
what did you say just now
C.
what can I do for you
D.
what happened to you
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【简答题】Asbestos(石棉)is tile generic name for a number of naturally occurring fibrous mineral silicates of which the most common types are crocidolite.also known as blue asbestos,and chrysotile(white asbestos)...
【简答题】fibrous (pertaining to fibers)
【单选题】Fibrous pericardium
A.
upward attached to the large vascular roots and with its outer membrane continued
B.
all of its anterior surface are covered by pleura
C.
superior vena cava is out the pericardium
D.
both sides affixed to visceral pleura
E.
consist of a thin and smooth serosa
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